Answer:
508.68
Step-by-step explanation:
Upper and lower surfaces of the cylinder:

Side area of the cylinder:

The total area:

Answer:
The answer is 1.
Step-by-step explanation:
The number is usually in front of the variable, if there is no number, it is a 1.
Answer:
1 and 2/4 I think
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Line of symmetry
Answer:
68
Step-by-step explanation:
6.8 × 
= 68